package com.thlws.netty.echo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.util.CharsetUtil;

/**OioEventLoopGroup
 * @author HanleyTang
 * @date 2018-12-11
 */

@ChannelHandler.Sharable
public class EchoClentHandler extends SimpleChannelInboundHandler<ByteBuf> {


    @Override
    protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
        System.out.println("Client received: " + msg.toString(CharsetUtil.UTF_8));

    }


    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        ctx.writeAndFlush(Unpooled.copiedBuffer("Netty rocks!", CharsetUtil.UTF_8));
    }


    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
       cause.printStackTrace();
       ctx.close();
    }
}
